The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2011
Filed:
Dec. 05, 2007
Lee MI DO, Daejeon, KR;
Kyu Ha Baek, Daejeon, KR;
Jeong Ik Lee, Gyeonggi-do, KR;
Yong Suk Yang, Daejeon, KR;
Sung Mook Chung, Gyeonggi-do, KR;
Hye Yong Chu, Daejeon, KR;
Sang Hee Park, Daejeon, KR;
Chi Sun Hwang, Daejeon, KR;
Lee Mi Do, Daejeon, KR;
Kyu Ha Baek, Daejeon, KR;
Jeong Ik Lee, Gyeonggi-do, KR;
Yong Suk Yang, Daejeon, KR;
Sung Mook Chung, Gyeonggi-do, KR;
Hye Yong Chu, Daejeon, KR;
Sang Hee Park, Daejeon, KR;
Chi Sun Hwang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An organic light emitting diode (OLED) device is provided. The OLED device includes: a substrate; an anode formed on the substrate; a first organic thin layer formed on the anode; an organic emission layer formed on the first organic thin layer; a second organic thin layer formed on the organic emission layer; and a cathode formed on the second organic thin layer, wherein the first and second organic thin layers are formed in a single layer or a multi-layer, and at least a part of the first or second organic thin layer is doped with or formed of an insulator. The OLED device provides excellent durability, long life-time, and increased luminous efficiency by balanced charge injection caused by doping or stacking the insulator into or on the organic thin layer.